ClassID:

120492

C23C22/57 - CPC Classification

Classification description:

Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates Treatment of magnesium or alloys based thereon

Recent Application in this class:
#1
20250327187
2025-10-23

CONVERSION COATING APPLICATION SYSTEM INCLUDING HYDROGELS AND METHODS OF USING SAME

#2
20250327186
2025-10-23

CONVERSION COATING APPLICATION SYSTEM INCLUDING HYDROGELS AND METHODS OF USING SAME

#3
20240327989
2024-10-03

CONVERSION COATING APPLICATION SYSTEM INCLUDING HYDROGELS AND METHODS OF USING SAME

#4
20240318316
2024-09-26

CONVERSION COATING APPLICATION SYSTEM INCLUDING HYDROGELS AND METHODS OF USING SAME

#5
20240318315
2024-09-26

Conversion coating application system including hydrogels and methods of using same

#6
20240158920
2024-05-16

SYSTEMS AND METHODS FOR TREATING A SUBSTRATE

#7
20230399751
2023-12-14

Conversion coating application system including hydrogels and methods of using same

#8
20230119028
2023-04-20

MAGNESIUM ALLOY/RESIN COMPOSITE STRUCTURE AND METHOD FOR MANUFACTURING THE SAME

#9
20220403526
2022-12-22

Surface treatment method of magnesium for the assembly of polymer and magnesium

#10
20220112607
2022-04-14

Coated metal alloy substrate with at least one chamfered edge and process for production thereof

#11
20210172067
2021-06-10

PRODUCTION METHOD FOR MAGNESIUM-CONTAINING METAL MATERIAL PROVIDED WITH COATING

#12
20210008768
2021-01-14

MAGNESIUM ALLOY/RESIN COMPOSITE STRUCTURE AND METHOD FOR MANUFACTURING THE SAME

#13
20200248287
2020-08-06

METAL CONNECTION MEMBER AND METHOD FOR CHEMICAL CONVERSION TREATMENT OF METAL CONNECTION MEMBER

#14
20200199759
2020-06-25

SLOWLY DEGRADED ALLOY AND METHOD FOR PRODUCING THE SAME

#15
20200109474
2020-04-09

MAGNESIUM-CONTAINING METAL MATERIAL PROVIDED WITH COATING

#16
20180320271
2018-11-08

CORROSION INHIBITOR COMPOSITION FOR MAGNESIUM OR MAGNESIUM ALLOYS

#17
20180282873
2018-10-04

Method and apparatus for structural coloration of metallic surfaces

#18
20180264166
2018-09-20

Alloy member usable in organisms and production method therefor

#19
20180179636
2018-06-28

METHOD AND APPARATUS FOR STRUCTURAL COLORATION OF METALLIC SURFACES

#20
20180154608
2018-06-07

Method for producing metal containing composite and metal containing composite formed by adhesion

#21
20180044590
2018-02-15

Corrosion inhibitor composition for magnesium or magnesium alloys

#22
20180029013
2018-02-01

Multifunctional cerium-based nanomaterials and methods for producing the same

#23
20180010253
2018-01-11

Method and apparatus for structural coloration of metallic surfaces

#24
20150191826
2015-07-09

Chemical conversion coating and method of fabricating the same

#25
20150090369
2015-04-02

Corrosion prevention of magnesium surfaces via surface conversion treatments using ionic liquids

#26
20150020925
2015-01-22

Method for the surface treatment of parts made of an aluminum or magnesium alloy

#27
20140371059
2014-12-18

Multifunctional cerium-based nanomaterials and methods for producing the same

#28
20140217064
2014-08-07

Composite of metal and resin and method for manufacturing the same

#29
20140186641
2014-07-03

Composite of metal and resin and method for manufacturing same

#30
20120171502
2012-07-05

Process for surface treating magnesium alloy and article made with same

#31
20120171501
2012-07-05

PROCESS FOR SURFACE TREATING MAGNESIUM ALLOY AND ARTICLE MADE WITH SAME

#32
20120171500
2012-07-05

PROCESS FOR SURFACE TREATING MAGNESIUM ALLOY AND ARTICLE MADE WITH SAME

#33
20120097295
2012-04-26

HALOGEN-FREE TRIVALENT CHROMIUM CONVERSION COATING

#34
20120055629
2012-03-08

Magnesium alloy member

#35
20110247728
2011-10-13

Halogen-free trivalent chromium conversion coating

#36
20110003162
2011-01-06

MAGNESIUM ALLOY MEMBER

#37
20100112287
2010-05-06

MAGNESIUM ALLOY COMPOSITE AND METHOD FOR MANUFACTURING SAME

#38
20100028602
2010-02-04

COMPOSITE OF METAL AND RESIN AND METHOD FOR MANUFACTURING THE SAME

#39
20100018025
2010-01-28

Method for manufacturing composite with high corrosion resistance

#40
20090280296
2009-11-12

Composite of metal and resin and method for manufacturing same

#41
20090050182
2009-02-26

Corrosion resistant substrate and method for producing the same

#42
20080160328
2008-07-03

Halogen-free trivalent chromium conversion coating

#43
20060147734
2006-07-06

Aqueous coating solutions and method for the treatment of a metal surface

#44
13656963
2016-01-05

Chemical conversion coating for protecting magnesium alloys from corrosion